Making a copy of an object?

What's the simplest way to make an exact copy of an existing object?

If p is an object of type Person, how do I make q an object of type person with all the same values, but independent (so that changing p\x doesn't change q\x)?

Or is the fastest way q\x = p\x, q\y = p\y etc?

Cheers.

Yes, the only way that I know of is simply creating another instance and copying the fields over one by one, perhaps in a function. There are many times I wish I had use of a copy constructor (not to mention operator overloading)... =)

<EDIT> ... and then I kick myself because Blitz is such a nice language and sticking in operator overloading would probably obfuscate it terribly... but I still like the idea of a copy constructor. =)